Catherine Zeta-Jones is receiving for treatment for bipolar disorder once again. A rep for the actress has confirmed that she checked into a mental health facility yesterday and will receive 30 days of inpatient care.

“Catherine has proactively checked into a health care facility. Previously Catherine has said that she is committed to periodic care in order to manage her health in an optimum manner,” said her rep to ABC News.

Her bipolar disorder was outed to the world by husband Michael Douglas in 2011, when he revealed her condition during an interview with Oprah Winfrey. She later issued a statement confirming Michael's claim and that she had previously received inpatient treatment. Catherine spent just five days in treatment during her first inpatient stay, opting to check out afterwards and go on medication.

"I’m sick of talking about it because I never wanted to be the poster child for this. I never wanted this to come out publicly," she said in an interview last December withGood Morning America. "Everyone has things going on and we deal with them the best they can. We can’t jump from the rooftops shouting, you know, about, ‘I have this, look at me, victim.’ No. We all have issues in life and I’m really happy that I have great friends, great support and that’s all I can do.”

Her willingness to put a brave face on about her condition has earned her respect from many in the Hollywood community including Demi Lovato, who tweeted about Catherine in 2011. "I don't know Catherine Zeta-Jones personally but what she has decided to do it SO brave. And SO difficult but worth it... I'm proud of her," she wrote.

Over the last year, Catherine sang at the Oscars and appeared in numerous films including Rock of Ages, Playing For Keeps, Broken City and Side Effects. She'll also be seen in this summer's RED 2.